GO curators for mouse genes have assigned the following annotations to the gene product of Rgs9bp. (This text reflects annotations as of Thursday, July 24, 2014.) Summary from NCBI RefSeq

[Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene functions as a regulator of G protein-coupled receptor signaling in phototransduction. Studies in bovine and mouse show that this gene is expressed only in the retina, and is localized in the rod outer segment membranes. This protein is associated with a heterotetrameric complex, specifically interacting with the regulator of G-protein signaling 9, and appears to function as the membrane anchor for the other largely soluble interacting partners. Mutations in this gene are associated with prolonged electroretinal response suppression (PERRS), also known as bradyopsia. [provided by RefSeq, Mar 2010]Summary text based on GO annotations supported by experimental evidence in mouse

Researchers have inferred, based on phenotypic analysis of mouse mutants, that the gene product of Rgs9bp